BLACK AND WHITE VERSION - US President Barack Obama (L) clasps hands with supporters at a campaign event at the University of Colorado in Boulder, Colorado, on September 2, 2012. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)

BLACK AND WHITE VERSION - Supporters listen as US President Barack Obama speaks during a campaign event at the Henry Maier Festival in Milwaukee, Wisconsin, September 22, 2012. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

Photo: SAUL LOEB, AFP/Getty Images

BLACK AND WHITE VERSION - Supporters listen as US President Barack...

BLACK AND WHITE VERSION - Supporters listen as US President Barack... Photo-3703689.52042 - SFGate

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BLACK AND WHITE VERSION - Supporters cheer as US President Barack Obama speaks at a campaign rally September 30, 2012 at Desert Pines High School Campaign in Las Vegas, Nevada. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)

Photo: MANDEL NGAN, AFP/Getty Images

BLACK AND WHITE VERSION - Supporters cheer as US President Barack...

BLACK AND WHITE VERSION - Supporters cheer as US President Barack... Photo-3703702.52042 - SFGate

BLACK AND WHITE VERSION - US Republican challenger Mitt Romney and his wife Ann watch their children and grandchildren playing a game before the start of the first presidential debate at the university of Denver on October 3, 2012 in Denver, Colorado. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

BLACK AND WHITE VERSION - A US Secret Service agent stands in the rain as Republican presidential candidate Mitt Romney (C) speaks during a rally in Newport News, Virginia, on October 8, 2012. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/GettyImages)

Photo: JIM WATSON, AFP/Getty Images

BLACK AND WHITE VERSION - A US Secret Service agent stands in the...

BLACK AND WHITE VERSION - A US Secret Service agent stands in the... Photo-3703752.52042 - SFGate

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BLACK AND WHITE VERSION
US Republican presidential candidate Mitt Romney supporters sing the US National Anthem as he holds a campaign rally at The Grove, in Chesapeake, Virginia, October 17, 2012. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION
US Republican presidential candidate Mitt Romney gives the thumb up to pilots greeting him prior to board his campaign plane at Norfolk International Airport in Norfolk, Virginia, October 17, 2012. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION
US President Barack Obama greets supporters during a campaign rally at George Mason University in Fairfax, Virginia, on October 19, 2012. The election will take place on November 6. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

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US President Barack Obama greets...

BLACK AND WHITE VERSION
US President Barack Obama greets... Photo-3703760.52042 - SFGate

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US President Barack Obama greets supporters during a campaign rally at George Mason University in Fairfax, Virginia, on October 19, 2012. The election will take place on November 6. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama greets...

BLACK AND WHITE VERSION
US President Barack Obama greets... Photo-3703761.52042 - SFGate

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BLACK AND WHITE VERSION
US Republican presidential candidate Mitt Romney talks with grandson Miles while having dinner with members of his family at BurgerFi restaurant in Delray Beach, Florida, on October 21, 2012. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION
US Republican presidential candidate Mitt Romney orders food with members of his family at BurgerFi restaurant in Delray Beach, Florida, on October 21, 2012. (L-R) son Craig, wife Ann and grandson Parker. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION
US Republican presidential candidate Mitt Romney (R) arrives to have dinner with members of his family at BurgerFi restaurant in Delray Beach, Florida, October 21, 2012. (L-R) Wife Ann, daughter in-law Mary, grandson Miles, son Craig, and grandson Parker. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION
US military veterans salute while attending a Republican presidential candidate Mitt Romney rally at The Grove, in Chesapeake, Virginia, October 17, 2012. AFP PHOTO/Emmanuel DUNAND

Photo: EMMANUEL DUNAND, AFP/Getty Images

BLACK AND WHITE VERSION
US military veterans salute while attending...

BLACK AND WHITE VERSION
US military veterans salute while attending... Photo-3703769.52042 - SFGate

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US President Barack Obama speaks during a campaign rally at Austin Straubel International Airport in Green Bay, Wisconsin, on November 1, 2012. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

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US President Barack Obama speaks during a...

BLACK AND WHITE VERSION
US President Barack Obama speaks during a... Photo-3703771.52042 - SFGate

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US Republican Presidential candidate Mitt Romney holds a rally at Orlando Sanford international airport in Orlando, Florida, November 5, 2012. Romney and US President Barack Obama are mounting last ditch efforts to hold key battleground states, one day before the US presidential elections. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION
Republican presidential candidate Mitt Romney arrives on stage on election night November 7, 2012 in Boston, Massachusetts, moments before conceding defeat to US President Barack Obama in the 2012 US presidential election. AFP PHOTO/EMMANUEL DUNAND

BLACK AND WHITE VERSION - US President Barack Obama walks to his car upon arriving in Romules, Michigan, on January 26, 2012. AFP Photo/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama walks to his...

BLACK AND WHITE VERSION - US President Barack Obama walks to his... Photo-3703391.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama arrives to speak during a campaign event at Colorado State University in Fort Collins, Colorado, August 28, 2012. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

BLACK AND WHITE VERSION - US President Barack Obama holds a baby during an Independence Day celebration for military members and their families and members of the administration the South Lawn of the White House in Washington, DC, July 4, 2012. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

Photo: SAUL LOEB, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama holds a baby...

BLACK AND WHITE VERSION - US President Barack Obama holds a baby... Photo-3703411.52042 - SFGate

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BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney chats with his advisers on board his campaign plane on October 4, 2012 in Denver, Colorado. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION - Supporters cheers for US Republican presidential candidate Mitt Romney at a campaign rally in Miami on September 19, 2012. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)

Photo: NICHOLAS KAMM, AFP/Getty Images

BLACK AND WHITE VERSION - Supporters cheers for US Republican...

BLACK AND WHITE VERSION - Supporters cheers for US Republican... Photo-3703416.52042 - SFGate

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BLACK AND WHITE VERSION - Supporters cheer as US President Barack Obama makes his way onto the stage to speak at a rain-soaked campaign event on July 14, 2012 at Walkerton Tavern & Gardens in Glen Allen, Virginia. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)

Photo: MANDEL NGAN, AFP/Getty Images

BLACK AND WHITE VERSION - Supporters cheer as US President Barack...

BLACK AND WHITE VERSION - Supporters cheer as US President Barack... Photo-3703420.52042 - SFGate

BLACK AND WHITE VERSION - US President Barack Obama speaks during a...

BLACK AND WHITE VERSION - US President Barack Obama speaks during a... Photo-3703422.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama greets customers prior to sitting down with US military veterans at the Gateway Breakfast House in Portland, Oregon, July 24, 2012. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

Photo: SAUL LOEB, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama greets...

BLACK AND WHITE VERSION - US President Barack Obama greets... Photo-3703612.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama delivers remarks at Waterloo Center for the Arts in Waterloo, Iowa, August 14, 2012 during his three-day campaign bus tour across the state. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/GettyImages)

Photo: JIM WATSON, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama delivers...

BLACK AND WHITE VERSION - US President Barack Obama delivers... Photo-3703623.52042 - SFGate

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BLACK AND WHITE VERSION - Members of the US Secret Service remove a supporter's hand from the back of US President Barack Obama as he greets supporters during a campaign event at Colorado State University in Fort Collins, Colorado, August 28, 2012. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

Photo: SAUL LOEB, AFP/Getty Images

BLACK AND WHITE VERSION - Members of the US Secret Service remove a...

BLACK AND WHITE VERSION - Members of the US Secret Service remove a... Photo-3703655.52042 - SFGate

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BLACK AND WHITE VERSION
US Republican Presidential candidate Mitt Romney and his wife Ann arrive during his last campaign rally in Manchester, New Hampshire, November 5, 2012. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION - US President Barack Obama eats a french fry while meeting with supporters about voter registration at OMG Burgers on September 20, 2012 in Miami, Florida. Obama is traveling to Florida for the day to participate in a taping for Univision in Miami before attending a campaign event in Tampa. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

Photo: BRENDAN SMIALOWSKI, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama eats a french...

BLACK AND WHITE VERSION - US President Barack Obama eats a french... Photo-3703671.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama is seen through a window as he meets with supporters about voter registration at OMG Burgers on September 20, 2012 in Miami, Florida. Obama is traveling to Florida for the day to participate in a taping for Univision in Miami before attending a campaign event in Tampa. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

Photo: BRENDAN SMIALOWSKI, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama is seen through...

BLACK AND WHITE VERSION - US President Barack Obama is seen through... Photo-3703681.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama boards Air Force One at McCarran International Airport September 12, 2012 in Las Vegas, Nevada. US President Barack Obama is on a two-day campaign trip where he will attend events in Nevada and Colorado. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney plays with the five children of his son Josh aboard his plane on September 18, 2012 in Salt Lake City. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)

Photo: NICHOLAS KAMM, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION - US President Barack Obama poses in a batting stance like a baseball player prior to speaking during a campaign rally at G. Richard Pfitzner Stadium in Woodbridge, Virginia, September 21, 2012. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

Photo: SAUL LOEB, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama poses in a...

BLACK AND WHITE VERSION - US President Barack Obama poses in a... Photo-3703700.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama gestures to supporters as he arrives onto the stage for a campaign rally October 4, 2012 at the University of Wisconsin- Madison in Madison, Wisconsin. Obama returned to the campaign trail after taking part in the first presidential debate on October 3, 2012 in Denver. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)

BLACK AND WHITE VERSION - US President Barack Obama (C) greets supporters at Toledo Express Airport in Bowling Green, Ohio, on September 26, 2012. Obama has widened his lead in the two main battleground states in the 2012 White House race as well as in Pennsylvania, according to a new opinion poll released Wednesday. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

BLACK AND WHITE VERSION - A supporter holds a note reads "I love Michelle" as US President Barack Obama speaks at a campaign rally at the Bowling Green State University on September 26, 2012 in Bowling Green, Ohio. Obama has widened his lead in the two main battleground states in the 2012 White House race as well as in Pennsylvania, according to a new opinion poll released Wednesday. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

BLACK AND WHITE VERSION
Republican Presidential candidate Mitt Romney (C), his wife Ann and son Matt (L) await in a holding room, the start of the second presidential debate at Hofstra University in Hempstead, New York, October 16, 2012. US President Barack Obama and Romney will face off in a town-hall style debate with undecided voters asking questions of the two candidates. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION
Members of the Secret Service watch as US President Barack Obama speaks during a rally at Veterans Memorial Park October 18, 2012 in Manchester, New Hampshire. Obama is traveling to New Hampshire and New York to attend campaign events before appearing on the "Daily Show" and attending the 67th Annual Alfred E. Smith Memorial Foundation dinner in New York City. AFP PHOTO/Brendan SMIALOWSKI

Photo: BRENDAN SMIALOWSKI, AFP/Getty Images

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Members of the Secret Service watch as US...

BLACK AND WHITE VERSION
Members of the Secret Service watch as US... Photo-3703757.52042 - SFGate

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BLACK AND WHITE VERSION
US President Barack Obama greets supporters as he arrives at a campaign rally in Cincinnati, Ohio, on November 4, 2012. Obama and Republican rival Mitt Romney are both showing signs of exhaustion as they dart from swing state to swing state, trying to fire up enthusiasm among supporters and win over any last wavering voters before November 6 election. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama greets supporters...

BLACK AND WHITE VERSION
US President Barack Obama greets supporters... Photo-3703778.52042 - SFGate

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BLACK AND WHITE VERSION - Republican presidential hopeful Mitt Romney greets a supporter after addressing a speech at Gilchrist Metal Fabricating in Hudson, New Hampshire, on January 9, 2012. New Hampshire will hold its Republican primary on January 10, 2012. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)

BLACK AND WHITE VERSION - Republican presidential hopeful Mitt Romney supporters await his arrival during a campaign rally at Wofford College in Spartanburg, South Carolina, on January 18, 2012. South Carolina will hold its Republican primary on January 21, 2012. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)

BLACK AND WHITE VERSION - US President Barack Obama plays basketball with former NBA player Bruce Bowen during the annual Easter Egg Roll on the South Lawn of the White House April 9, 2012 in Washington, DC. The First Family participated in the yearly event where the South Lawn is opened up to guests to participate in various egg rolls and other activities. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

Photo: BRENDAN SMIALOWSKI, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama plays...

BLACK AND WHITE VERSION - US President Barack Obama plays... Photo-3703402.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama smiles while speaking with Bronson Harwood (L) and David Palmer (C) during a round table at Lorain County Community College April, 18, 2012 in Elyria, Ohio. President Obama traveled to the college to attend a round table discussion and deliver a speech about the economy. (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

BLACK AND WHITE VERSION - US President Barack Obama, surrounded by the US Secret Service, walks to Air Force One after escorting First Lady Michelle Obama to her airplane at Hunter Army Airfield in Hinesville, Georgia, April 27, 2012, after visiting with US troops at Fort Stewart in Georgia. Michelle Obama is traveling to a fundraiser as President Obama returns to Washington. AFP PHOTO/Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

BLACK AND WHITE VERSION - A supporter kisses US President Barack Obama after he spoke at a rain-soaked campaign event on July 14, 2012 at Walkerton Tavern & Gardens in Glen Allen, Virginia. Obama is campaigning in Virginia for the second straight day ahead of the November presidential election. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)

Photo: MANDEL NGAN, AFP/Getty Images

BLACK AND WHITE VERSION - A supporter kisses US President Barack...

BLACK AND WHITE VERSION - A supporter kisses US President Barack... Photo-3703614.52042 - SFGate

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US President Barack Obama addresses a crowd of supporters on stage on election night November 6, 2012 in Chicago, Illinois. President Barack Obama swept to re-election Tuesday, forging history again by transcending a slow economic recovery and the high unemployment which haunted his first term to beat Republican Mitt Romney. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama addresses a crowd...

BLACK AND WHITE VERSION
US President Barack Obama addresses a crowd... Photo-3703823.52042 - SFGate

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BLACK AND WHITE VERSION
People prepare to cast their ballots inside polling booths just after midnight on November 6, 2012 in Dixville Notch, New hampshire, the very first voting to take place in the 2012 US presidential election. The final national polls showed an effective tie, with either US President Barack Obama or Republican challenger Mitt Romney favored by a single point in most surveys, reflecting the polarized politics of a deeply divided nation. AFP PHOTO / ROGERIO BARBOSA

Photo: AFP, AFP/Getty Images

BLACK AND WHITE VERSION
People prepare to cast their ballots inside...

BLACK AND WHITE VERSION
People prepare to cast their ballots inside... Photo-3703801.52042 - SFGate

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BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney along with his grandchildren watches the Republican National Convention on television in their hotel room in Tampa, Florida, on August 29, 2012. Romney lies neck-and-neck with Obama in national polls 10 weeks before an election that should be his for the taking, given the sour economy and an unemployment rate that is lingering stubbornly above eight percent. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION - US President Barack Obama (L) kisses First Lady Michelle Obama (R) as they arrive to deliver remarks during a campaign event at the Alliant Energy Amphitheater in Dubuque, Iowa, August 15, 2012, during his three-day campaign bus tour across the state. AFP PHOTO/Jim WATSON (Photo credit should read JIM WATSON/AFP/GettyImages)

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney speaks during a campaign event on October 5, 2012 in St. Petersburg, Florida. Fresh from a much-needed debate victory, Republican challenger Mitt Romney said his earlier remarks dismissing 47 percent of Americans as government dependents were "completely wrong." The admission came amid a campaign reset that shocked Democrat Barack Obama at Wednesday's debate, in which his invigorated rival for the White House vowed to fight for middle class families that Romney said were being "crushed" by the president's policies. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION - US President Barack Obama arrives at John F. Kennedy International Airport September 24, 2012 in New York. Obama is traveling for a two day trip to New York City where he will participate in a taping of "The View" before attending the United Nations General Assembly and related events. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

Photo: BRENDAN SMIALOWSKI, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama arrives at John...

BLACK AND WHITE VERSION - US President Barack Obama arrives at John... Photo-3703692.52042 - SFGate

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BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney (C) disembarks from his campaign plane on October 5, 2012 in Clearwater, Florida. Fresh from a much-needed debate victory, Republican challenger Mitt Romney said his earlier remarks dismissing 47 percent of Americans as government dependents were "completely wrong." The admission came amid a campaign reset that shocked Democrat Barack Obama at Wednesday's debate, in which his invigorated rival for the White House vowed to fight for middle class families that Romney said were being "crushed" by the president's policies. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION - US President Barack Obama greets supporters after speaking at a campaign event at Eden Park September 17, 2012 in Cincinnati, Ohio. Obama said Monday he liked to "walk the walk, not just talk the talk" on combating China trade abuses, in a sharp jab at his Republican foe Mitt Romney. Obama, unveiling a new trade enforcement action against Beijing, struck a highly populist note as he sought to lock in his polling advantage over Romney in the crucial swing state of Ohio. AFP PHOTO/Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

Photo: BRENDAN SMIALOWSKI, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama greets...

BLACK AND WHITE VERSION - US President Barack Obama greets... Photo-3703696.52042 - SFGate

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BLACK AND WHITE VERSION - Notes are seen on the podium after US Republican presidential candidate Mitt Romney addressed supporters during a campaign rally in Port Saint Lucie, Florida, on October 7, 2012. US President Barack Obama's campaign intensified attacks Sunday on Romney's honesty as it tried to halt the Republican challenger's momentum after a strong first debate performance. Romney's people hit back, and did so sarcastically, depicting Obama's people as childish sore losers after he came across as flat, nervous and unassertive during their first face-to-face encounter in Denver, Colorado. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - Notes are seen on the podium after US...

BLACK AND WHITE VERSION - Notes are seen on the podium after US... Photo-3703742.52042 - SFGate

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BLACK AND WHITE VERSION - Veterans at the American Legion Post 176 pray before US Republican presidential candidate Mitt Romney speaks at "Veterans for Romney" campaign event in Springfield, Virginia, on September 27, 2012. A flurry of polls showing widening leads for President Barack Obama Wednesday heaped pressure on Mitt Romney to use their first head-to-head debate next week to launch a major comeback bid. Fresh surveys showed Obama cementing his advantage in the key state battlegrounds that will decide the US election on November 6, and putting clear distance between himself and his Republican challenger nationwide. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - Veterans at the American Legion Post 176...

BLACK AND WHITE VERSION - Veterans at the American Legion Post 176... Photo-3703750.52042 - SFGate

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BLACK AND WHITE VERSION
US President Barack Obama calls volunteers as he visits a campaign office in Columbus, Ohio, on November 5, 2012. After a grueling 18-month battle, the final US campaign day arrived Monday for Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama calls volunteers...

BLACK AND WHITE VERSION
US President Barack Obama calls volunteers... Photo-3703783.52042 - SFGate

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BLACK AND WHITE VERSION
US President Barack Obama takes the stage during a campaign rally in Columbus, Ohio, on November 5, 2012. After a grueling 18-month battle, the final US campaign day arrived Monday for Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama takes the stage...

BLACK AND WHITE VERSION
US President Barack Obama takes the stage... Photo-3703787.52042 - SFGate

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BLACK AND WHITE VERSION
US President Barack Obama (C) greets supporters during a campaign rally in Madison, Wisconsin, on November 5, 2012. After a grueling 18-month battle, the final US campaign day arrived Monday for Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama (C) greets...

BLACK AND WHITE VERSION
US President Barack Obama (C) greets... Photo-3703791.52042 - SFGate

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BLACK AND WHITE VERSION
A supporter waves a US flag as President Barack Obama speaks at a campaign rally in Columbus, Ohio, on November 5, 2012. After a grueling 18-month battle, the final US campaign day arrived Monday for Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
A supporter waves a US flag as President...

BLACK AND WHITE VERSION
A supporter waves a US flag as President... Photo-3703796.52042 - SFGate

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BLACK AND WHITE VERSION - A woman carries a purse with a Time Magazine featuring Republican presidential candidate Mitt Romney on the cover at the Tampa Bay Times Forum in Tampa, Florida, on August 28, 2012 ahead of the day's Republican National Convention events. The 2012 Republican National Convention is expected to host 2,286 delegates and 2,125 alternate delegates from all 50 states, the District of Columbia and five territories. AFP PHOTO Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

Photo: BRENDAN SMIALOWSKI, AFP/Getty Images

BLACK AND WHITE VERSION - A woman carries a purse with a Time...

BLACK AND WHITE VERSION - A woman carries a purse with a Time... Photo-3703374.52042 - SFGate

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BLACK AND WHITE VERSION - Priscilla Marquez and Evie Walls from Arizona pose in the Google photo booth at the Time Warner Cable Arena in Charlotte, North Carolina, on September 5, 2012 ahead of events on the second day of the Democratic National Convention (DNC). The DNC is expected to nominate US President Barack Obama to run for a second term as president on September 6th. AFP PHOTO Brendan SMIALOWSKI (Photo credit should read BRENDAN SMIALOWSKI/AFP/GettyImages)

BLACK AND WHITE VERSION - A supporter holds a picture of US President Barack Obama during a campaign event at the University of Illinois at Chicago in Chicago, Illinois, on January 11, 2012. Obama sought to strike an implicit contrast with his most likely general election foe Mitt Romney, imploring big businesses to bring home US jobs outsourced overseas. White House officials insist that Obama has not yet started to focus on his bid for a second term in November, but is instead concentrating every day on his job, which he sees as reviving the economy and cutting unemployment. AFP Photo/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - A supporter holds a picture of US...

BLACK AND WHITE VERSION - A supporter holds a picture of US... Photo-3703380.52042 - SFGate

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BLACK AND WHITE VERSION - Republican presidential hopeful Mitt Romney rides his campaign bus riding between Gilbert and Charleston, South Carolina, January 20, 2012. South Carolina will hold its Republican primary on January 21, 2012. At C, is Romney's son, Tagg and granddaughter Allie. AFP PHOTO/Emmanuel Dunand (Photo credit should read EMMANUEL DUNAND/AFP/GettyImages)

BLACK AND WHITE VERSION - US President Barack Obama greets supporters after addressing a campaign event at the University of Illinois at Chicago in Chicago, Illinois, on January 11, 2012. Obama sought to strike an implicit contrast with his most likely general election foe Mitt Romney, imploring big businesses to bring home US jobs outsourced overseas. White House officials insist that Obama has not yet started to focus on his bid for a second term in November, but is instead concentrating every day on his job, which he sees as reviving the economy and cutting unemployment. AFP Photo/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama greets...

BLACK AND WHITE VERSION - US President Barack Obama greets... Photo-3703388.52042 - SFGate

BLACK AND WHITE VERSION - US President Barack Obama offers a birthday cake to a reporter during the return flight from his announced trip to Afghanistan May 2, 2012. Obama flew into Kabul in secret in the dead of night and signed the deal with President Hamid Karzai, cementing 10 years of US aid for Afghanistan after NATO combat troops leave in 2014. Most Afghans were asleep and he left after about six hours. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)

BLACK AND WHITE VERSION - US President Barack Obama and First Lady Michelle Obama have dinner with winners of a Democratic campaign contest at the Boundary Road restaurant in Washington, DC, March 8, 2012. Three winners and their guests each won the "Dinner with Barack and Michelle" contest, as part of a campaign fundraiser among grassroots supporters from around the country. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

Photo: SAUL LOEB, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama and First Lady...

BLACK AND WHITE VERSION - US President Barack Obama and First Lady... Photo-3703400.52042 - SFGate

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BLACK AND WHITE VERSION - US President Barack Obama disembarks from Air Force One at Philadelphia International Airport in Philadelphia on June 12, 2012. Obama is seeking to steady his reelection bid after a wobbly week by redrawing the economic choice facing US voters and stuffing millions of dollars into his campaign war chest. Obama was last week swamped by a torrent of bad economic news, mocked after he said the private sector was doing "fine" and forced to deny his White House was leaking intelligence on drone strikes and Iran to make him look tough. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US President Barack Obama disembarks from...

BLACK AND WHITE VERSION - US President Barack Obama greets girls playing at the Boys and Girls Club of Cleveland in Cleveland, Ohio, on June 14, 2012. Obama's campaign savagely mocked Mitt Romney as "out of touch" with ordinary Americans Wednesday with a web video featuring a highlight reel of the Republican's gaffes. The move came as Romney, a multi-millionaire former venture capitalist, argues that it is Obama that has lost touch with the economic pain stalking the US heartland, and as each candidate tries to outdo the other in professing deep empathy with the middle-class. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney listens as his running mate Paul Ryan speaks during a campaign rally at the village green park in Powell, Ohio, on August 25, 2012. After months of campaigning, US Republicans meet in Tampa, Florida, August 27-30 to officially crown Mitt Romney the nominee to challenge US President Barack Obama for the White House in November. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney talks with his wife Ann as they watch the Republican National Convention (RNC) on TV in their hotel room before heading to the RNC at the Tampa Bay Times Forum in Tampa, Florida, on August 28, 2012. Romney's image will get a carefully scripted makeover during the convention as the Republican White House hopeful aims to close the yawning likability gap between himself and President Barack Obama. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt Romney listens to a question as he talks to journalists about his phone call with Israeli Prime Minister Benjamin Netanyah on board his campaign plane on September 28, 2012. With 39 days to go for the election and polls showing an narrowing path to victory for the Republican nominee, Romney warned a second Obama term would be subsumed by economic malaise as he tried to draw the battle away from his own perceived missteps and back to the president's economic record. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - US Republican presidential candidate Mitt...

BLACK AND WHITE VERSION
US Republican presidential candidate Mitt Romney speaks during a campaign rally at George Mason University on November 5, 2012 in Fairfax, Virginia. After a grueling 18-month battle, the final US campaign day arrived for President Barack Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Mandel NGAN

BLACK AND WHITE VERSION
US President Barack Obama embraces First Lady Michelle Obama after speaking at his last campaign rally in Des Moines, Iowa, on November 5, 2012. After a grueling 18-month battle, the final US campaign day arrived Monday for Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama embraces First...

BLACK AND WHITE VERSION
US President Barack Obama embraces First... Photo-3703804.52042 - SFGate

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BLACK AND WHITE VERSION
US President Barack Obama speaks at his last campaign rally in Des Moines, Iowa, on November 5, 2012. After a grueling 18-month battle, the final US campaign day arrived Monday for Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Jewel Samad

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION
US President Barack Obama speaks at his...

BLACK AND WHITE VERSION
US President Barack Obama speaks at his... Photo-3703805.52042 - SFGate

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BLACK AND WHITE VERSION
US Republican Presidential candidate Mitt Romney walks towards his campaign plane after a rally at Lynchburg regional airport in Lynchburg, Virginia, on November 5, 2012. After a grueling 18-month battle, the final US campaign day arrived for President Barack Obama and Republican rival Mitt Romney, two men on a collision course for the world's top job. The candidates have attended hundreds of rallies, fundraisers and town halls, spent literally billions on attack ads, ground games, and get out the vote efforts, and squared off in three intense debates. AFP PHOTO/Emmanuel DUNAND

BLACK AND WHITE VERSION - A campaign staff holds on a chair that Republican presidential hopeful Mitt Romney stepped on to gain height to speak before a crowd at the Music Man Square in Mason City, Iowa on December 29, 2011. Mitt Romney has seized the lead in Iowa days before the unpredictable heartland state's caucus kicks off voting to decide the Republican presidential nominee, a new poll showed on December 28. Romney -- often described as the candidate to beat because of his campaign warchest and high-profile endorsements -- has struggled to boost his national support past roughly 25 percent of Republican voters. AFP Photo/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - A campaign staff holds on a chair that...

BLACK AND WHITE VERSION - A campaign staff holds on a chair that... Photo-3703377.52042 - SFGate

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BLACK AND WHITE VERSION - Republican presidential hopeful Mitt Romney (C) speaks during a meeting with voters at the Music Man Square in Mason City, Iowa on December 29, 2011. Mitt Romney has seized the lead in Iowa days before the unpredictable heartland state's caucus kicks off voting to decide the Republican presidential nominee, a new poll showed on December 28. Romney -- often described as the candidate to beat because of his campaign warchest and high-profile endorsements -- has struggled to boost his national support past roughly 25 percent of Republican voters. AFP Photo/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

BLACK AND WHITE VERSION - A supporter cries as she listens to US President Barack Obama address a campaign event at the University of Illinois at Chicago in Chicago, Illinois, on January 11, 2012. Obama sought to strike an implicit contrast with his most likely general election foe Mitt Romney, imploring big businesses to bring home US jobs outsourced overseas. White House officials insist that Obama has not yet started to focus on his bid for a second term in November, but is instead concentrating every day on his job, which he sees as reviving the economy and cutting unemployment. AFP Photo/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - A supporter cries as she listens to US...

BLACK AND WHITE VERSION - A supporter cries as she listens to US... Photo-3703379.52042 - SFGate

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BLACK AND WHITE VERSION - A crowd of people photograph US President Barack Obama speaking at the Intel Ocotillo Campus in Chandler, Arizona, on January 25, 2012. Obama kicked off a three-day five-state tour, one day after his State of Union speech. Obama wants large tax hikes on millionaires to finance a fair economy for all, a populist vision aimed at convincing crisis-weary voters he merits a second White House term. In his annual State of the Union address -- which this year served as a grand kick-off of his 2012 reelection campaign, Obama played on rising anger over inequality in the wake of the 2008 economic collapse. AFP Photo/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/GettyImages)

Photo: JEWEL SAMAD, AFP/Getty Images

BLACK AND WHITE VERSION - A crowd of people photograph US President...

BLACK AND WHITE VERSION - A crowd of people photograph US President... Photo-3703386.52042 - SFGate